What is the crystal field stabilisation energy? How does the magnitude of `Delta_(0)` decide the actual configuration of d-orbital in a coordination entiity?

Crystal field stabilisation energy for high spin d^(4) octahedral complex is

What is meant by crystal field splitting energy? On the basis of crystal field theory, write the eelctrone configuration of d^(4) in terms of t_(2g)ande_(g) in an octahedral field when (i) Delta_(0)gtP (ii) Delta_(0)ltP

In which of the following coordination entities the magnitude of Delta_(0) (CFSE in octahedral field) wiil be maximum? (At. no. of Co = 27)

Discuss the splitting of d-orbitals of the metal ion in an octahedral field. What do you mean by Crystal field stabilization energy?

Square planar complexes of MX_(2)L_(2) type with coordination number of 4 exhibit geometrical isomerism whereas tetrahedral complexes with similar composition do not. Why? Justify the formation of a low spin complex and a high spin complex taking the examples of [Fe(CN)_(6)]^(3-) and [FeF_(6)]^(3-) on the bases of "crystal field splitting energy". (Delta_(0))

Arrange thefollowing complex ions is the increasing order of crystal field splitting energy (Delta_(0)).[Fe(CN)_(6)]^(4-),[Fe(CO)_(5)],[Fe("en")_(3)]^(3+)